Physics & Astronomy
anoxia
100%
uranium isotopes
92%
uranium
58%
extinction
48%
expansion
36%
weathering
33%
sediments
28%
oceans
25%
eutrophication
22%
biological diversity
19%
photics
18%
shales
16%
limestone
15%
biomarkers
15%
Italy
13%
carbonates
13%
delivery
11%
recovery
9%
time measurement
9%
cycles
7%
output
6%
water
6%
Earth & Environmental Sciences
uranium isotope
82%
anoxia
67%
uranium
51%
Triassic
49%
extinction
48%
Hettangian
33%
weathering
18%
marine biodiversity
14%
anoxic sediment
14%
photic zone
14%
ocean
13%
well water
13%
black shale
13%
bottom water
11%
global change
11%
marine sediment
11%
biomarker
10%
eutrophication
10%
emplacement
10%
seafloor
9%
Jurassic
9%
limestone
8%
fold
8%
seawater
8%
carbonate
7%
province
7%
basin
5%
sediment
5%
Chemical Compounds
Isotope
49%
Eutrophication
14%
Weathering
11%
Biological Marker
8%
Black
8%
Carbonate
7%
Reduction
4%